[問題] 用mesh畫box的問題

[tramp (無法控制的思緒)]

我想要用Mesh的方式畫出box來

參考了MSDN上的code可以順利的畫出來

但當我寫入我自己原本檔案之中

畫出來的box卻一直是白色的


//以下是box的宣告  基本上跟MSDN上敎的一樣
        public void CreateBoxs(Device dev)
        {
            if (meshes == null)
                meshes = new Mesh[numberOfBoxs];
            if (meshLocations == null)
                meshLocations = new Vector3[numberOfBoxs];
            if (meshBoundingBoxMinValues == null)
                meshBoundingBoxMinValues = new Vector3[numberOfBoxs];
            if (meshBoundingBoxMaxValues == null)
                meshBoundingBoxMaxValues = new Vector3[numberOfBoxs];
            //activeMesh = null;
            for (int i = 0; i < numberOfBoxs; i++)
            {
                //GraphicsStream vertexData;

                meshes[i] = Mesh.Box(device, 0.05f, 0.05f, 0.05f);

                InitBox();

                VertexBufferDescription description =
                    meshes[i].VertexBuffer.Description;

                GraphicsStream vertexData = meshes[i].VertexBuffer.Lock
                                         (0, 0, LockFlags.ReadOnly);

                Geometry.ComputeBoundingBox(vertexData,
                    meshes[i].NumberVertices, description.VertexFormat,
                    out meshBoundingBoxMinValues[i],
                    out meshBoundingBoxMaxValues[i]);

                meshes[i].VertexBuffer.Unlock();
                device.RenderState.Ambient = Color.White;

            }

//以下是box顏色和位置的設定
        public void InitBox()
        {
            if (meshLocations == null)
                meshLocations = new Vector3[numberOfBoxs];

            if (meshColor == null)
                meshColor = new Color[numberOfBoxs];

            meshLocations[0] = new Vector3(0.2f, 0.0f, -2.3f);
            meshLocations[1] = new Vector3(0.1f, 0.0f, -2.3f);
            meshLocations[2] = new Vector3(0.0f, 0.0f, -2.3f);
            meshLocations[3] = new Vector3(-0.1f, 0.0f, -2.3f);
            meshLocations[4] = new Vector3(-0.2f, 0.0f, -2.3f);

            meshColor[0] = Color.Red;
            meshColor[1] = Color.Blue;
            meshColor[2] = Color.Green;
            meshColor[3] = Color.Purple;
            meshColor[4] = Color.Pink;
        }

//以下是我render的部份
煩請板上大大幫我看看到底為何只會是white的box


        private void Render()
        {
            if (isRendering)
            { return; }

            isRendering = true;

            if (device == null)
                return;


            Material material = new Material();

            device.BeginScene();
            device.Clear(ClearFlags.Target | ClearFlags.ZBuffer,
System.Drawing.Color.Black, 1.0f, 0);

            SetupMatrices();

            device.RenderState.FogColor = Color.Black;
            device.RenderState.FogStart = 0.0f;//IR_Z_Real / screenHeightInMM;
            device.RenderState.FogEnd = 0.0f + fogDepth;//IR_Z_Real /
screenHeightInMM + fogDepth;
            device.RenderState.FogVertexMode = FogMode.Linear;
            device.RenderState.FogEnable = true;

            if (showBox)
            {
                for (int i = 0; i < numberOfBoxs; i++)
                {
                    material.Ambient = meshColor[i];

                device.Transform.World = Matrix.Translation(meshLocations[i]);

                    device.Material = material;
                    meshes[i].DrawSubset(0);
                }
            }

//下面是我除了box另外會畫出的東西 就算我把這段略過
//box還是白色的
            if (showIRCursor)
            {

                device.SetTexture(0, cursorTexture);

                //Render States
                device.RenderState.AlphaBlendEnable = true;
                device.RenderState.AlphaFunction = Compare.Greater;
                device.RenderState.AlphaTestEnable = true;
                device.RenderState.DestinationBlend = Blend.InvSourceAlpha;
                device.RenderState.SourceBlend = Blend.SourceAlpha;
                device.RenderState.DiffuseMaterialSource =
ColorSource.Material;

                //Color blending operations
                device.TextureState[0].ColorOperation =
TextureOperation.Modulate;
                device.TextureState[0].ColorArgument1 =
TextureArgument.TextureColor;
                device.TextureState[0].ColorArgument2 =
TextureArgument.Diffuse;

                //set the first alpha stage to texture alpha
                device.TextureState[0].AlphaOperation =
TextureOperation.SelectArg1;
                device.TextureState[0].AlphaArgument1 =
TextureArgument.TextureColor;

                device.VertexFormat = Vertex.FVF_Flags;
                device.SetStreamSource(0, cursorBuffer, 0);

                ...

            }

            device.EndScene();

            device.Present();

            isRendering = false;
        }



不清楚到底是哪個地方的繪圖出了問題

導致box只畫出white( 想要五個box各有一種顏色)



另外想要請教關於繪圖的buffer之類的概念該去哪裡看

我是自己抓程式下來  但是很多基礎理論都不懂orz

感謝版上大大解惑<(___  ___)>

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